Beam with adjustable head



Jam l, 13 F MOSSBERG 2,027,748

BEAM WITH ADJUSTABLE HEAD Filed June 27, 1933 INVENTOR. @faQ/ se/y A TTOR'NEYS.

Patented Jan. 14, 1936 2,027,748 BEAM WITH ADJUSTABLE HEAD Frank Mossberg,

Attleboro, Mass., assigner to Mossberg Pressed Steel Corporation, a corporation of Massachusetts Application .lune 27,

8 Claims.

'I'his invention relates to a beam with an adjustable head and has for one of its objects the provision of a construction which will prevent the beam from becoming indented.

Another object of the invention is the provision of a beam having a sleeve to prevent depressions or indentations in the beam which sleeve: will conform to the varying size of the body portion of the beam and thus prevent the same from becoming loose on the beam.

Another object of the invention is the provision of a beam having a sleeve which is split lengthwise of the beam with the split located along the groove of the beam to cooperate therewith and yet permit expansion and contraction of the beam with the tube maintaining tight relation therewith.

vA -further object of the invention is the provision of a construction in which the beam may be protected against dents or abrasions and in which the beam head may be adjustable along the sleeve with the clamping portion of the head being located over the split in the sleeve.

With these and other objects in view, the invention consists of certain novel features oi construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. 1 is a top= plan view of a beam with adjustable heads showing my improved sleeve as mounted thereon.

Fig. 2 is a central sectional view through the beam-and head mounted thereon.

Fig. 3 is a section on line 3 3 of Fig. l.

Fig. 4 is a perspective view of a portion of the beam or body member.

Fig. 5 is a perspective view off the sleeve.

Fig. 6 Vis a sectional view of a modified form showing a mechanical adjustment for the head.

Fig. 7 is a-section on line i-l of a fragmental portion of Fig. 6.

Fig. 8 `is a sectional view of a different modification with mechanical adjustment.

Fig. 9 is a sectional view illustrating the insert in one of the openings of Fig. 8.

Fig. l0 is a top plan View of a ragmental portion illustrating the relation of the adjustment means to an opening in the sleeve.

In the use of beams such as warp beams in the textile industry it is frequently desirable to provide a beam having an adjustable head. The body portion of the beam is frequently of wood and the metal hub oi the beam head when clamped thereon compresses and dents the wood or abrades it in such a manner that the beam 1933, Serial No. 677,830

head will not run true or a rough surface may cause the warp or other threads to catch thereon and be torn. sults may be prevented In order that the undesirable reand the beam protected,

I have .provided a sleeve which is capable: by means of a split or some suitable construction of expanding or contracting so that as the body,

which is usually wood and which is of va hydroscopic nature and absorbs moisture, swells the sleeve may expand to when the wood dries out permit this action and and contracts the sleeve may follow the contracting beam and be mounted securely and tightly that an adjustment may by rotation of the head in the sleeve and the us to accommodate certain thereon, also in order be had mechanically I have utilized the split ual groove in the beam adjustment mechanism 'for this purpose and the following is a detailed description of the present embodiment of this invention illustrating the preferred means by which these advantageous results may be accomplished.

With reference to the 'the beam itself which body member which is drawing, I@ designates I will refer to as the illustrated as being formed of wood, although any material which swells and shrinks from the effect of moisture would come within the invention. Beam heads contemplation of this il and I2 are adjustable along the body member toward each other.

Each head member il a hub i3 formed in and I2 is provided with sections with radial projections l. Each head and hub has an opening through it of a diameter suilicient to receive a beam and the sections of each hub may be contracted by means of a bolt i5 extending through radial portions il proj from the hub i3 to bind ecting radially outwardly this hub in any desired position along the beam.

In order that the hub in 'being bound on the beam will not compress or dent the beam I have provided a sleeve it which may be of metal or some material which will not be dented or easily sleeve is the ends abraded. This portions il at tted over the reduced of body member iii and the sleeve is of a length to accommodate any position of adjustment rIhe sleeve it is split as sitioned to align with a ent in the beam and in warp threads are usually or the like. By being sp the wooden body member absorbs which is present in the so that the yarn rmay of the beam head il. at it, which split is pogroove i9 usually preswhich one end oi the fastened by a batten lit in this manner when moisture, mill, usually artiiicially be worked better, and

' swells, the sleeve may expand slightly to accommodate this expansion and when the beam dries out or is in an atmosphere of lesser moisture this sleeve may be contracted by the squeezing in or" the hub I3 and thus remains tight upon the body member |53 which tightness is exceedingly desirable.

The sleeve le is provided with openings 20 along its portion which is diametrically opposite the split I8 and through these openings screws 2| are provided to hold the sleeve in position, it being desired that the sleeve be fastened at a point diametrically opposite the split in order that its movement along the surface of the beam or body member will be equalized at either side of this fastening point and that the same may be more readily contracted by the squeezing in of the hub i3. This structure is duplicated at each end of the beam. Upon each end of the beam pulleys 22 are suitably mounted for tensioning the same, and from each there extends a spindle 23 for mounting the beam in suitable bearings for rotation.

It is frequently desirable to provide an adjustment of the beam head by rotation of the head relative to the body member, and in order that this may be accomplished the internal surface of the hub of the head 24 is threaded as at 25 and a member 26 having threads on its outer surface 2'! is positioned in the slot |9 of the body member. This member 25 may be moved to diierent selected positions along the slot IS and be held in the selected position desired by a bolt 21 extending into a selected threaded opening 28 in a metal plate 29 secured along the bottom of the slot by screws 30.

In some cases an alternative adjustment may be provided which will take the place of the fastening screws 2|. In this case a plurality of round holes 3| are provided in the body member and upon the bottom of each there is a metal plate 32. A plug 33 having a round body portion and a square top edge is tted into a selected hole with threads projecting beyond the surface of the sleeve that the threads of the hub may engage therewith. The square upper part of this plug iits into a correspondingly square hole 34 in the sleeve to prevent rotation of the plug and thus secures its proper alignment with the body portion for engagement by the hub. The plug 33 has a threaded opening 35 init, through which a headless bolt 36 extends to engage the plate 3| at the bottom of the hole that the plug may be forced outwardly by reason of the bolt number 36 being forced inwardly, until this plug 553 has been moved a suflicient amount to permit engagement therewith for withdrawal. This plug may be positioned in any selected hole 3| along the beam. In this particular instance as the plug requires a somewhat tight lit in the square opening in the sleeve this opening will be positioned at a point diametrically opposite the groove I9 and the split I8 and will serve to prevent rotation of the sleeve and to fasten it in place.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being dened and limited only by the terms of the appended claims.

I claim:

1. In a beam, a body member of relatively soft material, a head member having a contractile hub of a material harder than said body member and prvided with an opening therein to receive said body member and be movable therealong to different adjusted positions, and a split tube of a material harder than said body with its edges spaced and of a length to extend longitudinally of said body suicient to be engaged by said hub when contracted in its different positions of adjustment whereby when the tube is clamped on the body the body member is protected and yet variation in size due to the hydroscopic nature or the body is provided for.

2. In a beam, a body member having a longitudinal groove therein, a head member having a hub with an opening therein to receive said body member to be movable therealong to different adjusted positions, and a split tube of a material harder than said body with its edges spaced and extending along said groove and itself of a length to extend longitudinally of said body suicient to be engaged by said hub in its different positions of adjustment, whereby the body is protected and yet variation in size due to ,the hydroscopic nature of the body is provided for. y

3. In a beam, a wooden body member, a head member having a contractible metal hub with an opening therein to receive said body member to be movable therealong to diITerent adjusted positions, and a split tube of a material harder than said body with its edges spaced and of a length to extend longitudinally of said body suiicient to be engaged by said hub in its diierent positions of adjustment, whereby the wooden body is protected and yet variation in size due to the hydroscopic nature of the wood is provided for.

4. In a beam, a body member of relatively soft material having a longitudinal groove therein, a head member having a contractible hub of a material harder than said body member and Y provided with an opening therein to receive said body member to be slidable therealong to diierent adjusted positions, and a split tube of a material harder than said body with its edges spaced and positioned along ysaid groove and of a length to extend longitudinally of said body sufficient to be engaged by said hub in its different positions of adjustment, whereby the body is protected the contraction of the hub assists the contraction of the tube and yet variation in size due to the hydroscopic nature of the body is provided for.

5. In a beam, a wooden. body member having a longitudinal groove therein, a head member having a metal hub with an opening therein to receive said body member to be slidable therealong to different adjusted positions, and a split tube of a material harder than said body with its edges spaced and positioned along said groove and of a length to extend longitudinally of said body sufficient to be engaged by said hub in its different positions of adjustment, whereby the wooden bodylis protected and yet variation in size due to the hydroscopic nature of the wood is provided for.

6. In a beam, a body member having a longitudinal groove therein, a head member having a hub with an opening therein to receive said body member to be movable therealong to different adjusted positions, and a split tube of a material harder than said body with its edges spaced and extending along said groove and itself of a length to extend longitudinally of said body sulicient to be engaged by said hub in its different positions of adjustment, whereby the body is protected and yet variation in size due to the hydroscopic nature of the body is provided for, and means to secure it in position.

7. In a beam, a body member of relatively soit material, a head member having a hub of a material harder than said body member and provided with an opening therein to receive said body member and be movable therealong to different adjusted positions, and a split tube of a material harder than said body with its edges spaced and of a length to extend longitudinally of said body suilcient to be engaged by said hub on its different positions of adjustment whereby the body member is protected and yet variation in size due to the hydroscopic nature 'of the body is provided for, and means located along the split in said sleeve for adjusting the head longitudinally of said sleeve.

8. In a beam, a body member of relatively soft material, a head member having a hub of a material harder than said body member and provided with an opening therein to receive said body member and be movable therealong to different adjusted positions, and a split tube of a material harder than said body with 'its edges spaced and of a length to extend longitudinally of said body suiciernt to be engaged by said hub on its different positions of adjustment whereby the body member is protected and yet variation in size due to the hydroscopic nature of the body is provided for, means located. diametrically opposite said split to secure said sleeve in position, threads on said hub and threaded means secured along the split in said tube and cooperating with the threads on said hub for adjustment of the head along said body member.

FRANK MOSSBERG. 

